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Herbsmith Rx Si Wu San for Cats, Dogs and Horses

$70.00

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Herbsmith Rx Si Wu San for Cats, Dogs and Horses rx lineup

Herbsmith Rx Si Wu San for Cats, Dogs and Horses

Veterinary Authorization Required for TCVM Herbal Formulas - TCVM Pet Supply

Herbsmith Rx Si Wu San is the classical foundational Chinese herbal formula for blood tonification, recommended by holistic veterinarians to tonify the blood and regulate the liver in dogs, cats, and horses. Comparable to Four Substance Powder, Si Wu Tang, Dandruff Formula, and Four Materials Combination, it tonifies the blood and regulates the liver, addressing Chong and Ren vacuity and blood vacuity. Well suited for pets and horses presenting with liver blood deficiency and Chong and Ren vessel insufficiency, with signs such as pale or dry mucous membranes, lusterless coat, fatigue, weakness, hind limb weakness or atrophy, dry skin, reproductive irregularities, and the general signs of blood deficiency failing to nourish the liver, uterus, Chong and Ren vessels, sinews, and superficial tissues. Available as a concentrated powder mixed into food; cats and dogs use the Canine Blend, while horses use the Equine/Horse Blend. Dosing varies by species and body weight, and your authorizing veterinarian will provide specific guidance.

Veterinary Authorization Required - Click Here to Submit Your Authorization Request

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What It Supports

  • Blood tonification and liver blood nourishment: Tonifies the blood and nourishes the liver blood using the four classical herbs of Si Wu Tang, restoring the blood volume and quality needed to nourish the liver, sinews, skin, coat, and all tissues dependent on liver blood for their moistening and nourishing function, addressing the fatigue, pallor, lusterless coat, dry skin, and weakness that arise from blood deficiency.
  • Liver regulation and blood circulation: Regulates the liver and promotes free movement of blood through the liver's storing and distributing function, ensuring the replenished blood is properly stored by the liver and freely circulated to all tissues, and addressing the mild blood stagnation that can accompany chronic liver blood deficiency when the blood is too thin and insufficient to flow freely.
  • Chong and Ren vessel nourishment: Nourishes the Chong and Ren extraordinary vessels, which govern the blood, uterus, and reproductive system in female animals, addressing the Chong and Ren vacuity pattern that arises when liver blood is insufficient to adequately fill and nourish these vessels, supporting reproductive system health and the blood-dependent functions of the Chong and Ren.
  • Sinew, coat, and tissue nourishment: Nourishes the sinews, muscles, skin, and coat through the liver blood-nourishing and blood-circulating actions of the formula, addressing the hind limb weakness or atrophy, dry skin, lusterless or thinning coat, and general tissue malnourishment that arise from chronic liver blood deficiency in dogs, cats, and horses.

TCVM Principles

  • Primary action: Tonifies and nourishes the blood using Shu Di Huang as the principal blood-tonifying herb, supplemented by Dang Gui to nourish and invigorate the blood and Bai Shao to nourish the liver blood and soften the liver, providing the substantial blood nourishment needed to address the liver blood vacuity and Chong and Ren insufficiency at the root of the pattern.
  • Secondary action: Invigorates the blood and moves qi with Chuan Xiong to ensure the nourished blood circulates freely throughout the liver, sinews, and all blood-dependent tissues rather than becoming stagnant, and prevents the strongly tonifying action of Shu Di Huang from causing blood or qi stagnation by providing the movement needed to complement the consolidating and nourishing herbs throughout the formula.

Available Forms

  • Powder - Canine Blend (for dogs and cats): Available in 75 g, 150 g, 500 g, 900 g, and 1200 g sizes; mix into food at the recommended dose for your pet's weight. Cats and dogs both use this blend.
  • Powder - Equine/Horse Blend (for horses only): Available in 150 g, 500 g, 900 g, and 1200 g sizes; mix into grain at the recommended dose for your horse.

Suggested Use

For Dogs (Canine Blend Powder):

  • Under 30 lbs: ½ tsp twice daily, or as prescribed
  • 30-80 lbs: 1 tsp twice daily, or as prescribed
  • 80-120 lbs: 1½ tsp twice daily, or as prescribed
  • Over 120 lbs: 2 tsp twice daily, or as prescribed

For Cats (Canine Blend Powder): ¼ tsp twice daily, or as prescribed

For Horses (Equine/Horse Blend, 1,000 lb horse): Two tablespoons twice daily for 20 days, then two tablespoons once daily in grain. If the horse initially refuses, start with a small amount mixed into grain and gradually increase until the horse is accustomed to the taste. Most horses will readily accept the herbs in their grain.

Ingredients

Active Ingredients: Shu Di Huang (Radix Rehmanniae Glutinosae Conquitae), Bai Shao (Radix Paeoniae Lactiflorae), Dang Gui (Radix Angelicae Sinensis), Chuan Xiong (Radix Ligustici Chuanxiong)

Inactive Ingredient: Flaxseed

Veterinary Authorization Required - Click Here to Submit Your Authorization Request

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Active Ingredient TCVM Actions

Si Wu San is the classical four-herb blood tonification formula of Chinese medicine, combining a principal blood tonic, a blood-nourishing and blood-moving dual-action herb, a liver blood nourisher and liver softener, and a blood invigorator and qi mover to tonify the blood and regulate the liver from four complementary angles:

  • Shu Di Huang (Radix Rehmanniae Glutinosae Conquitae) - Prepared Rehmannia Root: Principal herb; strongly tonifies the blood and essence, nourishes the liver and kidney yin, and replenishes jing; the foundational blood and yin tonic of the formula and the most important single blood-tonifying herb in the Chinese materia medica, providing the deep nourishment needed to restore the blood volume and quality that the liver blood vacuity and Chong and Ren insufficiency pattern has depleted, and giving the formula the substantial tonifying action needed to nourish all blood-dependent tissues.
  • Dang Gui (Radix Angelicae Sinensis) - Dong Quai Root: Tonifies and invigorates the blood, nourishes the liver, moistens the intestines, and relieves stiffness; the principal blood tonic and blood mover of the formula, nourishing the liver blood deficiency while also providing mild blood-invigorating action to prevent the strongly consolidating Shu Di Huang from causing blood stagnation, and specifically addressing the Chong and Ren vessel insufficiency through its affinity for the uterus and reproductive system.
  • Bai Shao (Radix Paeoniae Lactiflorae) - White Peony Root: Nourishes the blood, softens the liver, relieves spasms and stiffness, and preserves the yin; nourishes the liver blood and yin with specific affinity for the liver's blood-storing function, softens the liver to prevent liver overacting on the spleen and ensure the middle burner continues to produce blood from food, and addresses the sinew stiffness, cramping, and spasm that arise from liver blood deficiency failing to nourish the sinews and tendons.
  • Chuan Xiong (Radix Ligustici Chuanxiong) - Sichuan Lovage Root: Invigorates blood, moves qi, expels wind, and relieves stiffness in the channels; the blood-moving and qi-moving counterbalance of the formula, ensuring the blood tonified by Shu Di Huang, Dang Gui, and Bai Shao circulates freely throughout the liver and all blood-dependent tissues rather than pooling or becoming stagnant, and preventing the formula's consolidating and tonifying herbs from producing a heavy, stagnating effect that would impede the liver's regulating and distributing function.

Potential Drug Interactions

Si Wu San contains blood-nourishing and blood-moving herbs including Dang Gui, Chuan Xiong, and Bai Shao, which have mild effects on platelet aggregation, blood viscosity, and smooth muscle tone. Pets currently on anticoagulant, antiplatelet, or hormone-based medications should use this formula under veterinary supervision, as Dang Gui and Chuan Xiong have known mild blood-thinning and blood-moving actions that may have additive effects with pharmaceutical blood thinners, and herb-drug interaction research in dogs, cats, and horses remains limited.

Medication categories warranting extra caution include anticoagulant or antiplatelet medications, non-steroidal anti-inflammatory drugs, hormone therapies or reproductive medications, and cardiac medications. Your authorizing veterinarian can determine appropriateness based on your animal's condition, current medications, and laboratory results.

Veterinary Authorization Required - Click Here to Submit Your Authorization Request

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Frequently Asked Questions

What conditions is Si Wu San used for in TCVM?

In Traditional Chinese Veterinary Medicine, Si Wu San is the foundational formula for liver blood vacuity and Chong and Ren vessel insufficiency, presenting with pale or dry mucous membranes, lusterless coat, fatigue, weakness, hind limb weakness or atrophy, dry skin, and reproductive irregularities arising from insufficient blood failing to nourish the liver, sinews, uterus, and Chong and Ren vessels. Comparable to Four Substance Powder, Si Wu Tang, Dandruff Formula, and Four Materials Combination, it is the classical base formula from which many blood-nourishing TCVM formulas are derived, including Tao Hong Si Wu San and Si Wu Xiao Feng San, and is appropriate when a straightforward blood tonification and liver regulation approach is indicated without the need for additional wind-expelling, stasis-resolving, or heat-clearing herbs.

How is Si Wu San administered to dogs, cats, and horses?

Mix the powder directly into food or grain at the dose recommended for your animal's species and body weight. Dogs and cats use the Canine Blend; horses use the Equine/Horse Blend. Dogs and cats receive the formula twice daily; horses receive two tablespoons twice daily for the first 20 days, then once daily for maintenance. If the horse initially refuses, start with a small amount mixed into grain and gradually increase until the horse is accustomed to the taste. Most horses will readily accept the herbs in their grain. Your authorizing veterinarian will confirm the appropriate dose and schedule for your individual animal.

How long does it take to see results with Si Wu San?

Many pets show improvement in coat quality, energy, and general vitality within 4 to 6 weeks of consistent use as the blood is tonified and the liver blood is restored. Because liver blood deficiency and Chong and Ren insufficiency are chronic deficiency patterns, a longer course of treatment of 8 to 12 weeks or more is typically needed to adequately nourish the blood and maintain the improvement in the signs of blood deficiency. Your veterinarian may recommend periodic reassessment to evaluate the pattern's response and adjust the treatment plan as the liver blood is gradually restored.

How does Si Wu San relate to other blood-nourishing TCVM formulas?

Si Wu San is the foundational four-herb blood tonification formula from which many related TCVM formulas are derived. Tao Hong Si Wu San adds Tao Ren and Hong Hua to address concurrent blood stasis alongside blood deficiency. Si Wu Xiao Feng San adds wind-expelling and heat-clearing herbs to address blood deficiency wind patterns in the skin. Ba Zhen San adds the four qi-tonifying herbs of Si Jun Zi Tang to address concurrent qi and blood deficiency. Your authorizing veterinarian will determine which blood-nourishing formula best matches your animal's full TCVM pattern diagnosis based on the presenting signs and the specific pattern of deficiency involved.

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